Elections were held in Frontenac County, Ontario on October 24, 2022, in conjunction with municipal elections across the province.
Frontenac County Council consists of the mayors of each of the four constituent municipalities plus an additional councillor from each municipality.
Frances L. Smith was re-elected by acclamation.
The following were the results for mayor of Frontenac Islands.
The following were the results for mayor of North Frontenac.
The following were the results for mayor of South Frontenac.